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Bad survival prognosis and patients' decline are working criteria to guide PC decision-making for older patients. Still, there is not a clear consensus on when to initiate early PC. This work aims to propose machine learning approaches to predict frailty and mortality in older patients in supporting PC decision-making. Predictive models based on Gradient Boosting Machines (GBM) and Deep Neural Networks (DNN) were implemented for binary 1-year mortality classification, survival estimation and 1-year frailty classification. Besides, we tested the similarity between mortality and frailty distributions. The 1-year mortality classifier achieved an Area Under the Curve Receiver Operating Characteristic (AUC ROC) of 0.87 [0.86, 0.87], whereas the mortality regression model achieved an mean absolute error (MAE) of 333.13 [323.10, 342.49] days. Moreover, the 1-year frailty classifier obtained an AUC ROC of 0.89 [0.88, 0.90]. Mortality and frailty criteria were weakly correlated and had different distributions, which can be interpreted as these assessment measurements are complementary for PC decision-making. This study provides new models that can be part of decision-making systems for PC services in older patients after their external validation.<\/jats:p>","DOI":"10.1177\/14604582221092592","type":"journal-article","created":{"date-parts":[[2022,6,1]],"date-time":"2022-06-01T06:48:48Z","timestamp":1654066128000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":13,"title":["Complementary frailty and mortality prediction models on older patients as a tool for assessing palliative care needs"],"prefix":"10.1177","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0056-0329","authenticated-orcid":false,"given":"Vicent","family":"Blanes-Selva","sequence":"first","affiliation":[{"name":"Biomedical Data Science Lab, Instituto Universitarios de Tecnolog\u00edas de La Informaci\u00f3n y Comunicaciones (ITACA), Universitat Polit\u00e8cnica de Val\u00e8ncia, Valencia, 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